j£M ft ^vSSS^. 



Figure 2. An intact colony of Rhizophysa sp. The 

 specimen was captured by meter net and relaxed in 

 magnesium sulfate prior to formalin fixation. 





Figure 3. Intact colony of Rhizophysa sp., showing 

 indentation in pneumatophore walls thought to be 

 associated with bubble expulsion. 



